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jarin 216bcf9fb3 [turbofan] Initial version of number type feedback. 
This introduces optimized number operations based on type feedback.

Summary of changes:

1. Typed lowering produces SpeculativeNumberAdd/Subtract for JSAdd/Subtract if
   there is suitable feedback. The speculative nodes are connected to both the
   effect chain and the control chain and they retain the eager frame state.

2. Simplified lowering now executes in three phases:
  a. Propagation phase computes truncations by traversing the graph from uses to
     definitions until checkpoint is reached. It also records type-check decisions
     for later typing phase, and computes representation.
  b. The typing phase computes more precise types base on the speculative types (and recomputes
     representation for affected nodes).
  c. The lowering phase performs lowering and inserts representation changes and/or checks.

3. Effect-control linearization lowers the checks to machine graphs.

Notes:

- SimplifiedLowering will be refactored to have handling of each operation one place and
  with clearer input/output protocol for each sub-phase. I would prefer to do this once
  we have more operations implemented, and the pattern is clearer.

- The check operations (Checked<A>To<B>) should have some flags that would affect
  the kind of truncations that they can handle. E.g., if we know that a node produces
  a number, we can omit the oddball check in the CheckedTaggedToFloat64 lowering.

- In future, we want the typer to reuse the logic from OperationTyper.

BUG=v8:4583
LOG=n

Review-Url: https://codereview.chromium.org/1921563002
Cr-Commit-Position: refs/heads/master@{#36674}
2016-06-02 09:23:13 +00:00
..
compiler [turbofan] Initial version of number type feedback. 2016-06-02 09:23:13 +00:00
heap Revert of Reland "[heap] Fine-grained JSArrayBuffer tracking" (patchset #7 id:180001 of https://codereview.chromium.org/2026633003/ ) 2016-06-02 06:47:34 +00:00
interpreter [Interpreter] Don't try to eliminate dead-code in bytecode-array-builder 2016-06-01 22:55:10 +00:00
libsampler Reland: Create libsampler as V8 sampler library. 2016-05-26 02:14:50 +00:00
wasm [wasm] Add more tests for interpreter breakpoints. 2016-05-30 10:03:39 +00:00
BUILD.gn Revert of Extend HasProperty stub with dictionary-mode and double-elements objects support. (patchset #8 id:280001 of https://codereview.chromium.org/1995453002/ ) 2016-06-01 21:10:13 +00:00
cctest_exe.isolate [Swarming] Isolate perf tests. 2016-02-15 11:17:18 +00:00
cctest.cc Avoid reliance on undefined malloc(0) behavior. 2016-04-29 16:54:53 +00:00
cctest.gyp Revert of Reland "[heap] Fine-grained JSArrayBuffer tracking" (patchset #7 id:180001 of https://codereview.chromium.org/2026633003/ ) 2016-06-02 06:47:34 +00:00
cctest.h Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
cctest.isolate [Interpreter] Refactor bytecode generator test suite. 2016-02-25 12:07:19 +00:00
cctest.status [wasm] Rename some test names on the skip list for BE 2016-05-27 14:09:00 +00:00
DEPS Add DEPS files and run checkdeps in presubmit check 2014-06-03 13:39:42 +00:00
expression-type-collector-macros.h Make typing-asm match spec more closely around load/store, add more tests. 2015-11-30 21:11:47 +00:00
expression-type-collector.cc Remove Expression::bounds_, in order to conserve memory during parsing. 2016-05-12 22:24:30 +00:00
expression-type-collector.h Remove Expression::bounds_, in order to conserve memory during parsing. 2016-05-12 22:24:30 +00:00
gay-fixed.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-fixed.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
gay-precision.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-precision.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
gay-shortest.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-shortest.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
log-eq-of-logging-and-traversal.js Fix test-log/EquivalenceOfLoggingAndTraversal 2013-08-26 14:56:23 +00:00
OWNERS S390: Check in OWNER file on to s390 directory 2016-03-15 14:25:38 +00:00
print-extension.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
print-extension.h Remove deprecated functions the smaller half of the remaing tests 2015-11-17 12:42:44 +00:00
profiler-extension.cc Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
profiler-extension.h Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
test-accessors.cc Interceptors expect the receiver to always be an JSReceiver. 2016-05-12 11:06:11 +00:00
test-api-accessors.cc Generalize 'fast accessor' tests to work with --always-opt. 2016-01-14 14:25:02 +00:00
test-api-fast-accessor-builder.cc [crankshaft] Replace stub cache harvesting with a bit of type propagation 2016-02-15 15:22:00 +00:00
test-api-interceptors.cc Reland of [keys] Simplify KeyAccumulator (patchset #1 id:1 of https://codereview.chromium.org/2010593002/ ) 2016-05-25 09:13:54 +00:00
test-api.cc Revert of [heap] Do not invoke GC to make heap iterable. (patchset #3 id:40001 of https://codereview.chromium.org/1992913004/ ) 2016-05-31 17:43:15 +00:00
test-api.h [api] Introduce ReturnValue::Get 2016-04-12 09:34:12 +00:00
test-array-list.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-asm-validator.cc [es6] Reintroduce the instanceof operator in the backends. 2016-05-17 11:25:59 +00:00
test-assembler-arm64.cc [arm64] Make sure that memory allocated for assembler tests is executable. 2016-02-29 10:52:34 +00:00
test-assembler-arm.cc [arm] Clean up handling of usat. 2016-05-12 18:20:30 +00:00
test-assembler-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-mips64.cc MIPS: Fix unbounded label counter. 2016-04-28 11:01:12 +00:00
test-assembler-mips.cc MIPS: Fix unbounded label counter. 2016-04-28 11:01:12 +00:00
test-assembler-ppc.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-s390.cc PPC: [build] Fix a clang warning 2016-05-25 15:29:15 +00:00
test-assembler-x64.cc [x64] Fix invalid REX prefix for pslld, psrld and friends. 2016-06-01 07:59:56 +00:00
test-assembler-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-ast-expression-visitor.cc Remove Expression::bounds_, in order to conserve memory during parsing. 2016-05-12 22:24:30 +00:00
test-ast.cc Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
test-atomicops.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bignum-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bignum.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bit-vector.cc Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
test-circular-queue.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-arm.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-mips64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-mips.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs.h Introduce x87 port 2014-05-23 16:37:27 +00:00
test-compiler.cc Move of the type feedback vector to the closure. 2016-05-27 08:10:51 +00:00
test-constantpool.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-conversions.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-cpu-profiler.cc Reland: Create libsampler as V8 sampler library. 2016-05-26 02:14:50 +00:00
test-date.cc Invalidate defaultObjects if timezone changes 2016-05-20 17:47:45 +00:00
test-debug.cc Revert of [heap] Do not invoke GC to make heap iterable. (patchset #3 id:40001 of https://codereview.chromium.org/1992913004/ ) 2016-05-31 17:43:15 +00:00
test-decls.cc Remove support for legacy const, part 1 2016-03-22 17:52:13 +00:00
test-deoptimization.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-dictionary.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
test-disasm-arm64.cc Add {lda,stl}x?r{,b,h} instructions to ARM64 assembler/disassembler 2016-05-19 20:10:05 +00:00
test-disasm-arm.cc Add ldrex and strex instructions to ARM assembler/disassmbler 2016-05-19 19:13:12 +00:00
test-disasm-ia32.cc Revert of Adding ia32 simd assembler changes. (patchset #2 id:20001 of https://codereview.chromium.org/1991713002/ ) 2016-05-19 08:58:18 +00:00
test-disasm-mips64.cc [build] Fix a clang warning 2016-05-24 10:47:24 +00:00
test-disasm-mips.cc [build] Fix a clang warning 2016-05-24 10:47:24 +00:00
test-disasm-ppc.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-s390.cc S390: Initial test changes and files checkin. 2016-03-15 18:09:36 +00:00
test-disasm-x64.cc Adding x64 simd assembler support. 2016-05-19 19:54:03 +00:00
test-disasm-x87.cc X87: Add cmpxchg and lock instructions to x64 and ia32 {dis,}assemblers. 2016-05-19 05:58:55 +00:00
test-diy-fp.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-double.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-elements-kind.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-experimental-extra.js Add experimental, non-snapshotted V8 extras 2015-08-20 00:01:14 +00:00
test-extra.js [bootstrapper] extra natives must not use natives syntax. 2016-02-05 12:33:55 +00:00
test-fast-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-feedback-vector.cc Move of the type feedback vector to the closure. 2016-05-27 08:10:51 +00:00
test-feedback-vector.h The metadata part of TypeFeedbackVector is extracted to TypeFeedbackMetadata array. 2015-10-07 10:33:32 +00:00
test-field-type-tracking.cc [runtime] Ensure that all elements kind transitions are chained to the root map. 2016-06-01 15:55:11 +00:00
test-fixed-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-flags.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-func-name-inference.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-fuzz-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-global-handles.cc Introduce a new phantom weakness type without finalization callback. 2016-05-09 07:18:00 +00:00
test-global-object.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-hashing.cc S390: Initial test changes and files checkin. 2016-03-15 18:09:36 +00:00
test-hashmap.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-heap-profiler.cc Revert of [heap] Do not invoke GC to make heap iterable. (patchset #3 id:40001 of https://codereview.chromium.org/1992913004/ ) 2016-05-31 17:43:15 +00:00
test-hydrogen-types.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-identity-map.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-inobject-slack-tracking.cc Promises: Lazily create arrays to store resolve, reject callbacks 2016-05-26 23:30:37 +00:00
test-javascript-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-js-arm64-variables.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-list.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-liveedit.cc Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
test-lockers.cc S390: Initial test changes and files checkin. 2016-03-15 18:09:36 +00:00
test-log-stack-tracer.cc Split TickSample and Sampler. 2016-05-17 06:12:28 +00:00
test-log.cc Revert of [heap] Do not invoke GC to make heap iterable. (patchset #3 id:40001 of https://codereview.chromium.org/1992913004/ ) 2016-05-31 17:43:15 +00:00
test-macro-assembler-arm.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-mips64.cc MIPS: Implement unaligned access instruction. 2016-04-28 15:10:12 +00:00
test-macro-assembler-mips.cc MIPS: Implement unaligned access instruction. 2016-04-28 15:10:12 +00:00
test-macro-assembler-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-mementos.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-parsing.cc Improve strictness of Annex B 3.3 for generators and async functions 2016-05-27 18:23:20 +00:00
test-platform-linux.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-platform-win32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-platform.cc [gn] Add cctest 2016-06-01 14:16:27 +00:00
test-profile-generator.cc Ship try-finally optimization in Turbofan. 2016-04-27 04:29:07 +00:00
test-random-number-generator.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-receiver-check-hidden-prototype.cc Fix the receiver check in the HandleFastApiCall builtin. 2016-01-14 12:24:04 +00:00
test-regexp.cc [regexp] do not assume short external strings have a minimum size. 2016-04-20 13:57:08 +00:00
test-reloc-info.cc [build] Fix a clang warning 2016-05-24 10:47:24 +00:00
test-representation.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-run-wasm-relocation-arm64.cc V8: Fix OS X build of ARM 64 test. 2016-05-09 17:30:56 +00:00
test-run-wasm-relocation-arm.cc Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code. 2016-05-04 20:20:50 +00:00
test-run-wasm-relocation-ia32.cc Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code. 2016-05-04 20:20:50 +00:00
test-run-wasm-relocation-x64.cc Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code. 2016-05-04 20:20:50 +00:00
test-run-wasm-relocation-x87.cc X87: Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code. 2016-05-06 07:31:04 +00:00
test-sampler-api.cc S390: Initial test changes and files checkin. 2016-03-15 18:09:36 +00:00
test-serialize.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
test-simd.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-slots-buffer.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
test-strings.cc [builtins] Migrate String.fromCharCode to C++. 2016-05-21 16:59:59 +00:00
test-strtod.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-symbols.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-thread-termination.cc Introduce v8::MicrotasksScope. 2016-03-04 17:42:17 +00:00
test-threads.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-trace-event.cc [Tracing] Remove deprecated AddTraceEvent 2016-03-01 21:20:48 +00:00
test-transitions.cc Don't include field-type.h/field-index.h into property.h 2016-02-16 13:28:47 +00:00
test-typedarrays.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-types.cc Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
test-unbound-queue.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-unboxed-doubles.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
test-unique.cc Expose a lower bound of malloc'd memory via heap statistics 2016-04-01 10:01:56 +00:00
test-unscopables-hidden-prototype.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-utils-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-utils-arm64.h [test] Test expectations in cctest should use CHECK and not DCHECK. 2015-12-07 05:37:15 +00:00
test-utils.cc [serializer] split up src/snapshot/serialize.* 2016-03-01 14:44:08 +00:00
test-version.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-weakmaps.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
test-weaksets.cc [heap] Harden heap-related cctests 2016-05-20 13:32:50 +00:00
testcfg.py [test] Fix deterministic test shards. 2016-03-31 07:38:22 +00:00
trace-extension.cc [build] Fix a clang warning 2016-05-24 10:47:24 +00:00
trace-extension.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
types-fuzz.h Remove the template magic from types.(h|cc), remove types-inl.h. 2016-02-02 07:26:06 +00:00